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QUANTITATIVE EVALUATION METHOD OF DAMAGED PART ON CONCRETE SURFACE, QUANTITATIVE EVALUATION DEVICE, QUANTITATIVE EVALUATION SYSTEM AND PROGRAM
QUANTITATIVE EVALUATION METHOD OF DAMAGED PART ON CONCRETE SURFACE, QUANTITATIVE EVALUATION DEVICE, QUANTITATIVE EVALUATION SYSTEM AND PROGRAM
To provide a quantitative evaluation method capable of quantitatively evaluating a damaged part having a planer spread on a concrete surface, a quantitative evaluation device, a quantitative evaluation system, and program.SOLUTION: A quantitative evaluation method of a damaged part on a concrete surface includes: a step of inputting a photographic image of a concrete surface including a damaged part having a planer spread into a computer and executing a brightness correction processing based on a predetermined brightness correction amount for the brightness at the time of the photographing; and a step of executing a wavelet conversion processing for the input image and creating a wavelet image having a wavelet coefficient for each pixel; a step of binarizing each pixel of the wavelet image using the wavelet coefficient which is a threshold value of the wavelet coefficient and creating a binarized image; a step of executing a pretreatment for the binarized image and creating a damaged part specifying image; and a step of calculating a quantitative value of the damaged part in the damage part specifying image.SELECTED DRAWING: Figure 4
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